package com.liu.webstore.service;

import java.util.Date;

/**
 * @Author LiuYumei
 * @Date 2022/8/28 21:41
 */
public interface DataService {
    void recordUV(String ip);

    long calculateUV(Date start, Date end);

    void recordDAU(int userId);

    long calculateDAU(Date start, Date end);
}
